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답안 #216895

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
216895 2020-03-28T10:18:13 Z eriksuenderhauf 치료 계획 (JOI20_treatment) C++11
100 / 100
 385 ms 32344 KB 
//#pragma GCC optimize("O3")
#include <bits/stdc++.h>
#define pii pair<int, int>
#define pb push_back
#define st first
#define nd second
#define ar(n) array<ll,(n)>
using namespace std;
typedef long long ll;
const ll inf = 1e16 + 7;
const int M = 200005;
ar(4) a[M], b[M];
priority_queue<ar(2), vector<ar(2)>, greater<ar(2)>> pq;
ll n, m, t=1, dp[M];
vector<pii> seg[M];
int vis[M];

void setE(int idx, int i, int j) {
  for (++i; i < M; i += i & -i)
    seg[i].pb({j, idx});
}

void updE(int i, int j, ll v) {
  for (++i; i > 0; i -= i & -i) {
    while (!seg[i].empty()) {
      int k = seg[i].back().nd;
      if (vis[k]) {
        seg[i].pop_back();
        continue;
      }
      if (seg[i].back().st < j)
        break;
      pq.push({v + a[k][3], k});
      vis[k] = 1;
      seg[i].pop_back();
    }
  }
}

int main() {
  scanf("%lld %lld", &n, &m);
  for (int i = 1; i <= m; i++) {
    for (int j = 0; j < 4; j++)
      scanf("%lld", &a[i][j]);
    t = max(t, a[i][0]);
  }
  vector<ll> cH, cV;
  for (int i = 1; i <= m; i++) {
    dp[i] = inf;
    b[i][0] = a[i][0]+a[i][1]-1;
    b[i][1] = a[i][0]-a[i][2]+n;

    b[i][2] = a[i][0]+a[i][2]-1;
    b[i][3] = a[i][0]-a[i][1]+n;
    if (a[i][1] == 1) {
      b[i][3] = n+t-1;
      dp[i] = a[i][3];
      pq.push({dp[i], i});
    }
    if (a[i][2] == n)
      b[i][2] = n+t-1;
    cH.pb(b[i][0]);
    cH.pb(b[i][2]+1);
    cV.pb(b[i][1]-1);
    cV.pb(b[i][3]);
  }
  sort(cH.begin(), cH.end());
  sort(cV.begin(), cV.end());
  cH.erase(unique(cH.begin(), cH.end()), cH.end());
  cV.erase(unique(cV.begin(), cV.end()), cV.end());
  for (int i = 1; i <= m; i++) {
    b[i][0] = lower_bound(cH.begin(), cH.end(), b[i][0]) - cH.begin() + 1;
    b[i][2] = lower_bound(cH.begin(), cH.end(), b[i][2]+1) - cH.begin() + 1;
    b[i][1] = lower_bound(cV.begin(), cV.end(), b[i][1]-1) - cV.begin() + 1;
    b[i][3] = lower_bound(cV.begin(), cV.end(), b[i][3]) - cV.begin() + 1;
    if (dp[i] == inf)
      setE(i, b[i][0], b[i][3]);
  }
  for (int i = 0; i < M; i++)
    sort(seg[i].begin(), seg[i].end());
  ll ans = inf;
  while (!pq.empty()) {
    auto it = pq.top(); pq.pop();
    dp[it[1]] = it[0];
    if (a[it[1]][2] == n) {
      ans = min(ans, it[0]);
      continue;
    }
    updE(b[it[1]][2], b[it[1]][1], it[0]);
  }
  ans = ans == inf ? -1 : ans;
  printf("%lld\n", ans);
  return 0;
}

Compilation message

treatment.cpp: In function 'int main()':
treatment.cpp:41:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%lld %lld", &n, &m);
   ~~~~~^~~~~~~~~~~~~~~~~~~~~
treatment.cpp:44:12: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
       scanf("%lld", &a[i][j]);
       ~~~~~^~~~~~~~~~~~~~~~~~

Subtask #1
4.0 / 4.0

# 결과 실행 시간 메모리 Grader output
1 Correct 301 ms 25296 KB Output is correct
2 Correct 276 ms 25304 KB Output is correct
3 Correct 232 ms 25072 KB Output is correct
4 Correct 238 ms 24600 KB Output is correct
5 Correct 264 ms 32344 KB Output is correct
6 Correct 245 ms 28628 KB Output is correct
7 Correct 211 ms 27856 KB Output is correct
8 Correct 234 ms 28244 KB Output is correct
9 Correct 214 ms 26704 KB Output is correct
10 Correct 197 ms 26584 KB Output is correct
11 Correct 327 ms 30460 KB Output is correct
12 Correct 333 ms 30472 KB Output is correct
13 Correct 361 ms 31184 KB Output is correct
14 Correct 385 ms 31376 KB Output is correct
15 Correct 337 ms 28500 KB Output is correct
16 Correct 337 ms 27736 KB Output is correct
17 Correct 326 ms 28760 KB Output is correct
18 Correct 315 ms 30372 KB Output is correct

Subtask #2
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 7 ms 4992 KB Output is correct
2 Correct 7 ms 4992 KB Output is correct
3 Correct 7 ms 4992 KB Output is correct
4 Correct 8 ms 4992 KB Output is correct
5 Correct 7 ms 4992 KB Output is correct
6 Correct 7 ms 4992 KB Output is correct
7 Correct 7 ms 4992 KB Output is correct
8 Correct 7 ms 4992 KB Output is correct
9 Correct 7 ms 4992 KB Output is correct
10 Correct 7 ms 4992 KB Output is correct
11 Correct 7 ms 4992 KB Output is correct
12 Correct 8 ms 4992 KB Output is correct
13 Correct 7 ms 5120 KB Output is correct
14 Correct 7 ms 4992 KB Output is correct
15 Correct 7 ms 4992 KB Output is correct
16 Correct 8 ms 4992 KB Output is correct
17 Correct 7 ms 4992 KB Output is correct
18 Correct 9 ms 4992 KB Output is correct
19 Correct 7 ms 4992 KB Output is correct

Subtask #3
30.0 / 30.0

# 결과 실행 시간 메모리 Grader output
1 Correct 7 ms 4992 KB Output is correct
2 Correct 7 ms 4992 KB Output is correct
3 Correct 7 ms 4992 KB Output is correct
4 Correct 8 ms 4992 KB Output is correct
5 Correct 7 ms 4992 KB Output is correct
6 Correct 7 ms 4992 KB Output is correct
7 Correct 7 ms 4992 KB Output is correct
8 Correct 7 ms 4992 KB Output is correct
9 Correct 7 ms 4992 KB Output is correct
10 Correct 7 ms 4992 KB Output is correct
11 Correct 7 ms 4992 KB Output is correct
12 Correct 8 ms 4992 KB Output is correct
13 Correct 7 ms 5120 KB Output is correct
14 Correct 7 ms 4992 KB Output is correct
15 Correct 7 ms 4992 KB Output is correct
16 Correct 8 ms 4992 KB Output is correct
17 Correct 7 ms 4992 KB Output is correct
18 Correct 9 ms 4992 KB Output is correct
19 Correct 7 ms 4992 KB Output is correct
20 Correct 19 ms 6144 KB Output is correct
21 Correct 17 ms 6144 KB Output is correct
22 Correct 19 ms 6348 KB Output is correct
23 Correct 23 ms 6400 KB Output is correct
24 Correct 20 ms 6400 KB Output is correct
25 Correct 21 ms 6400 KB Output is correct
26 Correct 19 ms 6400 KB Output is correct
27 Correct 17 ms 6400 KB Output is correct
28 Correct 19 ms 6272 KB Output is correct
29 Correct 19 ms 6272 KB Output is correct
30 Correct 17 ms 6272 KB Output is correct
31 Correct 16 ms 6272 KB Output is correct
32 Correct 20 ms 6528 KB Output is correct
33 Correct 21 ms 6528 KB Output is correct
34 Correct 20 ms 6400 KB Output is correct
35 Correct 20 ms 6528 KB Output is correct
36 Correct 20 ms 6476 KB Output is correct
37 Correct 20 ms 6400 KB Output is correct

Subtask #4
61.0 / 61.0

# 결과 실행 시간 메모리 Grader output
1 Correct 301 ms 25296 KB Output is correct
2 Correct 276 ms 25304 KB Output is correct
3 Correct 232 ms 25072 KB Output is correct
4 Correct 238 ms 24600 KB Output is correct
5 Correct 264 ms 32344 KB Output is correct
6 Correct 245 ms 28628 KB Output is correct
7 Correct 211 ms 27856 KB Output is correct
8 Correct 234 ms 28244 KB Output is correct
9 Correct 214 ms 26704 KB Output is correct
10 Correct 197 ms 26584 KB Output is correct
11 Correct 327 ms 30460 KB Output is correct
12 Correct 333 ms 30472 KB Output is correct
13 Correct 361 ms 31184 KB Output is correct
14 Correct 385 ms 31376 KB Output is correct
15 Correct 337 ms 28500 KB Output is correct
16 Correct 337 ms 27736 KB Output is correct
17 Correct 326 ms 28760 KB Output is correct
18 Correct 315 ms 30372 KB Output is correct
19 Correct 7 ms 4992 KB Output is correct
20 Correct 7 ms 4992 KB Output is correct
21 Correct 7 ms 4992 KB Output is correct
22 Correct 8 ms 4992 KB Output is correct
23 Correct 7 ms 4992 KB Output is correct
24 Correct 7 ms 4992 KB Output is correct
25 Correct 7 ms 4992 KB Output is correct
26 Correct 7 ms 4992 KB Output is correct
27 Correct 7 ms 4992 KB Output is correct
28 Correct 7 ms 4992 KB Output is correct
29 Correct 7 ms 4992 KB Output is correct
30 Correct 8 ms 4992 KB Output is correct
31 Correct 7 ms 5120 KB Output is correct
32 Correct 7 ms 4992 KB Output is correct
33 Correct 7 ms 4992 KB Output is correct
34 Correct 8 ms 4992 KB Output is correct
35 Correct 7 ms 4992 KB Output is correct
36 Correct 9 ms 4992 KB Output is correct
37 Correct 7 ms 4992 KB Output is correct
38 Correct 19 ms 6144 KB Output is correct
39 Correct 17 ms 6144 KB Output is correct
40 Correct 19 ms 6348 KB Output is correct
41 Correct 23 ms 6400 KB Output is correct
42 Correct 20 ms 6400 KB Output is correct
43 Correct 21 ms 6400 KB Output is correct
44 Correct 19 ms 6400 KB Output is correct
45 Correct 17 ms 6400 KB Output is correct
46 Correct 19 ms 6272 KB Output is correct
47 Correct 19 ms 6272 KB Output is correct
48 Correct 17 ms 6272 KB Output is correct
49 Correct 16 ms 6272 KB Output is correct
50 Correct 20 ms 6528 KB Output is correct
51 Correct 21 ms 6528 KB Output is correct
52 Correct 20 ms 6400 KB Output is correct
53 Correct 20 ms 6528 KB Output is correct
54 Correct 20 ms 6476 KB Output is correct
55 Correct 20 ms 6400 KB Output is correct
56 Correct 257 ms 24152 KB Output is correct
57 Correct 263 ms 24376 KB Output is correct
58 Correct 301 ms 26328 KB Output is correct
59 Correct 306 ms 26320 KB Output is correct
60 Correct 323 ms 28116 KB Output is correct
61 Correct 299 ms 26448 KB Output is correct
62 Correct 256 ms 24360 KB Output is correct
63 Correct 304 ms 25332 KB Output is correct
64 Correct 298 ms 25552 KB Output is correct
65 Correct 323 ms 27608 KB Output is correct
66 Correct 319 ms 28116 KB Output is correct
67 Correct 320 ms 27740 KB Output is correct
68 Correct 273 ms 27560 KB Output is correct
69 Correct 239 ms 27928 KB Output is correct
70 Correct 322 ms 27864 KB Output is correct
71 Correct 279 ms 27592 KB Output is correct
72 Correct 236 ms 27544 KB Output is correct
73 Correct 330 ms 27476 KB Output is correct
74 Correct 249 ms 27096 KB Output is correct
75 Correct 200 ms 26456 KB Output is correct
76 Correct 343 ms 30424 KB Output is correct
77 Correct 355 ms 30496 KB Output is correct
78 Correct 359 ms 31188 KB Output is correct
79 Correct 372 ms 28880 KB Output is correct
80 Correct 334 ms 28500 KB Output is correct
81 Correct 314 ms 28456 KB Output is correct
82 Correct 339 ms 28496 KB Output is correct
83 Correct 355 ms 28504 KB Output is correct
84 Correct 363 ms 28444 KB Output is correct
85 Correct 331 ms 28500 KB Output is correct
86 Correct 334 ms 27864 KB Output is correct
87 Correct 330 ms 28240 KB Output is correct
88 Correct 337 ms 27352 KB Output is correct
89 Correct 370 ms 28248 KB Output is correct
90 Correct 365 ms 31832 KB Output is correct
91 Correct 338 ms 28632 KB Output is correct
92 Correct 344 ms 28408 KB Output is correct
93 Correct 365 ms 28240 KB Output is correct
94 Correct 341 ms 27344 KB Output is correct
95 Correct 344 ms 28248 KB Output is correct
96 Correct 364 ms 30932 KB Output is correct
97 Correct 369 ms 30800 KB Output is correct
98 Correct 379 ms 30800 KB Output is correct
99 Correct 367 ms 30676 KB Output is correct
100 Correct 301 ms 28096 KB Output is correct
101 Correct 384 ms 30800 KB Output is correct
102 Correct 348 ms 30036 KB Output is correct
103 Correct 356 ms 28248 KB Output is correct